gistfile1.txt

xquery version "3.0";

module namespace services = 'http://basex.org/modules/web-page';

declare namespace request="http://exist-db.org/xquery/request";
declare namespace rest = "http://exquery.org/ns/restxq";
declare namespace output = "http://www.w3.org/2010/xslt-xquery-serialization";
declare namespace json="http://www.json.org";


declare
    %rest:GET
    %rest:path("/all-documents.json")
    %rest:produces("application/json")
    %output:method("json")
function services:home-json() {
  services:func()
};

declare
    %rest:GET
    %rest:path("/all-documents.xml")
    %rest:produces("application/xml")
function services:home-xml() {
  services:func()
};

declare
    %private
function services:func() {

<items> {
    let $data-collection := 'onkopedia'
    for $doc in collection($data-collection)[ends-with(base-uri(.), '.xml')]
    return 
        <item>
            <uri>{base-uri($doc)}</uri>
        </item>
}
</items>
};